CN212379157U - Nitrogen blowing instrument with quantitative concentration function - Google Patents
Nitrogen blowing instrument with quantitative concentration function Download PDFInfo
- Publication number
- CN212379157U CN212379157U CN202020417502.5U CN202020417502U CN212379157U CN 212379157 U CN212379157 U CN 212379157U CN 202020417502 U CN202020417502 U CN 202020417502U CN 212379157 U CN212379157 U CN 212379157U
- Authority
- CN
- China
- Prior art keywords
- sample tube
- nitrogen blowing
- sample
- lifting device
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a nitrogen blowing instrument with quantitative concentration function, which comprises a control system, a gas distribution system, a lifting device, a sample positioning frame and a plurality of sample tube channels, wherein a sample tube is arranged in each sample tube channel, the gas distribution system comprises the lifting device and a nitrogen blowing needle, the nitrogen blowing needle is arranged right above the sample tube, and the lifting device drives the nitrogen blowing needle to ascend or descend; each sample tube channel is provided with an optical sensor and a semiconductor refrigeration piece, the side wall of each sample tube channel is provided with a mounting hole, and one end of each optical sensor penetrates through the mounting hole and is attached to the sample tube; the control system controls the gas distribution system and the lifting device to perform corresponding actions according to the liquid level change in the sample tube detected by the optical sensor, and changes the current direction to enable the semiconductor refrigerating sheet to switch the refrigerating end and the heating end. The device can carry out high-efficient quantitative concentration to the sample of different solvents.
Description
Technical Field
The utility model relates to a detection area, specific theory has related to a nitrogen blows appearance with concentrated function of ration.
Background
In the analysis work, in order to obtain a trace amount of target components, a sample to be detected needs to be pretreated, the process mainly comprises basic steps of sample extraction (extraction), concentration, admonish chemical reaction and the like, and how to rapidly and nondestructively concentrate the sample has great practical significance.
The nitrogen blowing instrument is one of the most common concentration means, and has the advantages of simultaneously concentrating single or multiple samples and obviously improving the working efficiency when processing a large number of samples. However, if the sample solvent is blown to be concentrated by nitrogen blowing, target component loss is easily caused and the accuracy of the result is affected, so that the traditional nitrogen blowing instrument needs to be manually watched to observe the blowing degree of the solvent in actual use.
In order to solve the above problems, people are always seeking an ideal technical solution.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the defects of the prior art, thereby providing a nitrogen blowing instrument with quantitative concentration function.
In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a nitrogen blowing instrument with a quantitative concentration function comprises a control system, a gas distribution system, a lifting device, a sample positioning frame and a plurality of sample tube channels arranged on the sample positioning frame, wherein sample tubes are arranged in the sample tube channels, and the control system is in control connection with the gas distribution system and the lifting device;
the gas distribution system is arranged above the sample positioning frame and comprises a lifting device and a nitrogen blowing needle, the nitrogen blowing needle is arranged right above the sample tube, and the lifting device drives the nitrogen blowing needle to ascend or descend;
each sample tube channel is provided with an optical sensor and a semiconductor refrigeration piece, the side wall of each sample tube channel is provided with a mounting hole, and one end of each optical sensor penetrates through the mounting hole and is attached to the sample tube;
the control system controls the gas distribution system and the lifting device to perform corresponding actions according to the liquid level change in the sample tube detected by the optical sensor, and changes the current direction to enable the semiconductor refrigerating sheet to switch the refrigerating end and the heating end.
Based on the above, the gas distribution system further comprises a nitrogen gas bottle communicated with the nitrogen blowing needle, wherein the nitrogen gas bottle is provided with a flow regulating valve and a switch valve, and the control system is in control connection with the flow regulating valve and the switch valve.
Based on the above, the nitrogen blower with the quantitative concentration function further comprises a relay connected with the semiconductor refrigeration piece, and the control system controls the relay to change the current direction, so that the semiconductor refrigeration piece switches the refrigeration end and the heating end.
Based on the above, the nitrogen blowing instrument with the quantitative concentration function further comprises a buzzer connected with the control system.
Based on the above, the semiconductor chilling plate is arranged at the lower part of the sample tube channel.
The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model provides a nitrogen blows appearance with concentrated function of ration has added optical sensor on the basis of traditional nitrogen blows appearance and has been used for the concentrated process of monitoring every sample, and every passageway adopts independent semiconductor refrigeration piece accuse temperature simultaneously, can carry out high-efficient concentration to the sample of different solvents simultaneously.
Specifically, the optical sensor consists of a near-infrared light-emitting diode and a photosensitive receiver, and due to different refraction degrees of liquid and air to light, when a solvent in the sample tube is evaporated and concentrated to a preset volume, a signal of the photosensitive receiver can generate obvious difference. At the moment, the system can automatically stop the nitrogen purging of the sample tube and give an alarm through the buzzer for prompting. The semiconductor refrigerating piece can switch the refrigerating end and the heating end by changing the current direction, and has the advantages of long service life, small thermal inertia, high heating efficiency, accurate temperature control and the like. The temperature can be accurately controlled to reach the maximum concentration efficiency aiming at different solvents when the heating nitrogen is blown, and meanwhile, the cooling mode can be quickly switched to when the heating nitrogen is concentrated to the preset volume, so that the continuous volatilization of the solvents is reduced to the maximum extent, and the accurate quantitative concentration is realized.
Drawings
Fig. 1 is a schematic view of the overall structure of the nitrogen blowing instrument with the quantitative concentration function provided by the present invention.
Fig. 2 is a schematic diagram of the control logic of the nitrogen blowing instrument with the quantitative concentration function provided by the present invention.
In the figure: 1. a gas distribution system; 2. nitrogen blowing needle; 3. a sample positioning frame; 4. a sample tube channel; 5. an optical sensor 6, a semiconductor refrigerating sheet; 7. a buzzer.
Detailed Description
The technical solution of the present invention will be described in further detail through the following embodiments.
The embodiment provides a nitrogen blowing instrument with a quantitative concentration function, as shown in fig. 1 and fig. 2, the nitrogen blowing instrument comprises a control system, a gas distribution system 1, a lifting device, a sample positioning frame 3 and a plurality of sample tube channels 4 arranged on the sample positioning frame 3, sample tubes are arranged in the sample tube channels 4, and the control system is in control connection with the gas distribution system 1 and the lifting device.
The gas distribution system 1 is arranged above the sample positioning frame 3, and the gas distribution system 1 comprises a lifting device and a nitrogen blowing needle 2. The nitrogen blowing needle 2 is arranged right above the sample tube, and the lifting device drives the nitrogen blowing needle 2 to ascend or descend.
Every all be provided with optical sensor 5 and semiconductor refrigeration piece 6 on sample tube passageway 4, the mounting hole has been seted up on the sample tube passageway 4 lateral wall, optical sensor 5's one end passes the mounting hole and with the sample tube is laminated mutually.
And the control system controls the gas distribution system and the lifting device to perform corresponding actions according to the liquid level change in the sample tube detected by the optical sensor 5, and changes the current direction so that the semiconductor refrigerating sheet 6 switches the refrigerating end and the heating end.
The gas distribution system further comprises a nitrogen cylinder communicated with the nitrogen blowing needle 2, a flow regulating valve and a switch valve are arranged on the nitrogen cylinder, and the control system is in control connection with the flow regulating valve and the switch valve.
The nitrogen blowing instrument with the quantitative concentration function further comprises a relay connected with the semiconductor refrigerating sheet 6, and the control system controls the relay to change the current direction, so that the semiconductor refrigerating sheet 6 switches the refrigerating end and the heating end.
In order to embody the reminding function, the nitrogen blowing instrument with the quantitative concentration function further comprises a buzzer 7 connected with the control system, and the buzzer 7 is arranged on the air distribution system.
For better temperature control, the semiconductor refrigeration piece 6 is arranged at the lower part of the sample tube channel 4.
The lifting device is an air cylinder and a connecting rod driven by the air cylinder, and one end of the connecting rod is connected with the air distribution system.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.
Claims (5)
1. The utility model provides a nitrogen blows appearance with concentrated function of ration which characterized in that: the device comprises a control system, a gas distribution system, a lifting device, a sample positioning frame and a plurality of sample pipe channels arranged on the sample positioning frame, wherein sample pipes are arranged in the sample pipe channels, and the control system is in control connection with the gas distribution system and the lifting device;
the gas distribution system is arranged above the sample positioning frame and comprises a lifting device and a nitrogen blowing needle, the nitrogen blowing needle is arranged right above the sample tube, and the lifting device drives the nitrogen blowing needle to ascend or descend;
each sample tube channel is provided with an optical sensor and a semiconductor refrigeration piece, the side wall of each sample tube channel is provided with a mounting hole, and one end of each optical sensor penetrates through the mounting hole and is attached to the sample tube;
the control system controls the gas distribution system and the lifting device to perform corresponding actions according to the liquid level change in the sample tube detected by the optical sensor, and changes the current direction to enable the semiconductor refrigerating sheet to switch the refrigerating end and the heating end.
2. The nitrogen blowing instrument with the quantitative concentration function according to claim 1, characterized in that: the gas distribution system further comprises a nitrogen cylinder communicated with the nitrogen blowing needle, a flow regulating valve and a switch valve are arranged on the nitrogen cylinder, and the control system is in control connection with the flow regulating valve and the switch valve.
3. The nitrogen blowing instrument with the quantitative concentration function according to claim 1 or 2, characterized in that: the semiconductor refrigerating sheet heating device is characterized by further comprising a relay connected with the semiconductor refrigerating sheet, and the control system controls the relay to change the current direction, so that the semiconductor refrigerating sheet switches the refrigerating end and the heating end.
4. The nitrogen blowing instrument with the quantitative concentration function according to claim 3, characterized in that: the control system also comprises a buzzer connected with the control system.
5. The nitrogen blowing instrument with the quantitative concentration function according to claim 4, characterized in that: the semiconductor chilling plate is arranged at the lower part of the sample tube channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020417502.5U CN212379157U (en) | 2020-03-27 | 2020-03-27 | Nitrogen blowing instrument with quantitative concentration function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020417502.5U CN212379157U (en) | 2020-03-27 | 2020-03-27 | Nitrogen blowing instrument with quantitative concentration function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212379157U true CN212379157U (en) | 2021-01-19 |
Family
ID=74158920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020417502.5U Active CN212379157U (en) | 2020-03-27 | 2020-03-27 | Nitrogen blowing instrument with quantitative concentration function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212379157U (en) |
-
2020
- 2020-03-27 CN CN202020417502.5U patent/CN212379157U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201335967Y (en) | On-line monitoring system for emission of industrial fumes and flue gases | |
| CN101698823B (en) | High-speed servo motor and optical positioning-based fluorescence quantitative PCR detection system | |
| CN212379157U (en) | Nitrogen blowing instrument with quantitative concentration function | |
| US20210404988A1 (en) | Pulsed sampling-based ion mobility spectrometer and sniffer | |
| CN217479432U (en) | Annular isothermal amplification detector with heating and auxiliary refrigerating functions | |
| CN219590322U (en) | Plastic film crack detection device | |
| CN204440190U (en) | A kind of air chamber attemperating unit of gas analyzer | |
| CN212206786U (en) | Portable atmospheric environment sampling detection device | |
| CN202631345U (en) | Quantitative liquid size automatic regulation and control device | |
| CN205861406U (en) | Full automatic atmospheric keeps sample device | |
| CN206114622U (en) | Autoalarm of gas composition monitoring among fruit vegetables controlled atmosphere system | |
| CN113564039A (en) | Portable real-time fluorescence quantitative PCR instrument | |
| CN108801890A (en) | A kind of integrated islands and reefs marine atmosphere comprehensive simulation acceleration test apparatus | |
| JP4737865B2 (en) | Solution concentrator | |
| CN213181466U (en) | Biological analysis detecting system | |
| CN216411124U (en) | Quick temperature change single-trap system | |
| CN205580979U (en) | Spectrophotometer equipment | |
| CN219957079U (en) | Incubator device | |
| CN215404249U (en) | Cell injection device based on image processing analysis | |
| CN215856121U (en) | Portable real-time fluorescence quantitative PCR instrument | |
| CN207918854U (en) | A kind of clinical laboratory's microbial bacterial dual temperature culture storehouse | |
| CN204203207U (en) | A kind of novel flue gas on-line monitoring equipment for big power station | |
| CN205229082U (en) | A supplementary humidification device for cold mirrors dew point hygrometer | |
| CN219641546U (en) | Constant temperature equipment of gas analysis appearance | |
| CN116242594A (en) | Gas spring durability test box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |